Archive of Collections



Details and Image



Item#TypeModel No.Match No.Variant No.Model NameMakerCountryProduction or Serial No.MaterialScale LengthDateCondition
KEU664Linear
N4053-3F
4129
1
Polyphase Mannheim AdjustableKeuffel & EsserUSA
468797
Engine divided celluloid laminated mahogany
"10"
1934
C4

Notes: "Improved glass indicator marked PATENT PENDING. Graduated as fine as 20". Has company name in middle and patent date on left end above A scale."KEU280

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